2153641283865 has 32 divisors (see below), whose sum is σ = 3900935168640. Its totient is φ = 1126936819008.

The previous prime is 2153641283803. The next prime is 2153641283867. The reversal of 2153641283865 is 5683821463512.

2153641283865 is a `hidden beast` number, since 2 + 1 + 536 + 4 + 1 + 28 + 3 + 86 + 5 = 666.

It is not a de Polignac number, because 2153641283865 - 2¹¹ = 2153641281817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153641283867) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150491887 + ... + 150506196.

It is an arithmetic number, because the mean of its divisors is an integer number (121904224020).

Almost surely, 2^{2153641283865} is an apocalyptic number.

It is an amenable number.

2153641283865 is a deficient number, since it is larger than the sum of its proper divisors (1747293884775).

2153641283865 is a wasteful number, since it uses less digits than its factorization.

2153641283865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300998150 (or 300998144 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 2153641283865 in words is "two trillion, one hundred fifty-three billion, six hundred forty-one million, two hundred eighty-three thousand, eight hundred sixty-five".